Healthcare provider profile · identity verified

William L Redenius, MD

Internal Medicine · SCOTTSDALE, AZ · NPI 1154396455

Profile state: partd only Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

We did not find matching Open Payments records for this doctor in 2025.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

There is no payer-company set available for this comparison.

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
Atorvastatin CalciumAtorvastatin Calcium23563
BiktarvyBictegrav/Emtricit/Tenofov Ala23222
Amlodipine BesylateAmlodipine Besylate15142
Rosuvastatin CalciumRosuvastatin Calcium14439
LisinoprilLisinopril10630
Tamsulosin HclTamsulosin Hcl10529
Zolpidem TartrateZolpidem Tartrate9225
GabapentinGabapentin8922
Levothyroxine SodiumLevothyroxine Sodium8929
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen8614
TriumeqAbacavir/Dolutegravir/Lamivudi84suppressed
Metformin HclMetformin Hcl7924
Emtricitabine-Tenofovir DisopEmtricitabine/Tenofovir (Tdf)71suppressed
Escitalopram OxalateEscitalopram Oxalate6612
Metoprolol SuccinateMetoprolol Succinate6519
AlprazolamAlprazolam6420
AcyclovirAcyclovir6218
Pantoprazole SodiumPantoprazole Sodium5514
Alendronate SodiumAlendronate Sodium5211
FinasterideFinasteride50suppressed
Trazodone HclTrazodone Hcl4813
AtenololAtenolol4712
Losartan PotassiumLosartan Potassium4714
HydrochlorothiazideHydrochlorothiazide4614
OmeprazoleOmeprazole4514
Sertraline HclSertraline Hcl44suppressed
SimvastatinSimvastatin4412
LorazepamLorazepam41suppressed
RitonavirRitonavir41suppressed
GenvoyaElviteg/Cob/Emtri/Tenof Alafen40suppressed
AllopurinolAllopurinol3912
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide39suppressed
DarunavirDarunavir37suppressed
JanuviaSitagliptin Phosphate37suppressed
IsentressRaltegravir Potassium35suppressed
Paroxetine HclParoxetine Hcl34suppressed
ClonazepamClonazepam32suppressed
Duloxetine HclDuloxetine Hcl32suppressed
TivicayDolutegravir Sodium32suppressed
Albuterol Sulfate HfaAlbuterol Sulfate30suppressed
EzetimibeEzetimibe29suppressed
Bupropion XlBupropion Hcl28suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen28suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid28suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl27suppressed
MaravirocMaraviroc27suppressed
Benazepril HclBenazepril Hcl25suppressed
Enalapril MaleateEnalapril Maleate25suppressed
Testosterone CypionateTestosterone Cypionate25suppressed
DescovyEmtricitabine/Tenofov Alafenam24suppressed
FenofibrateFenofibrate24suppressed
FenofibrateFenofibrate Nanocrystallized24suppressed
Ipratropium BromideIpratropium Bromide2411
PrezcobixDarunavir/Cobicistat24suppressed
Tenofovir Disoproxil FumarateTenofovir Disoproxil Fumarate24suppressed
Tizanidine HclTizanidine Hcl24suppressed
TemazepamTemazepam23suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl22suppressed
IbuprofenIbuprofen22suppressed
JardianceEmpagliflozin22suppressed
Lopinavir-RitonavirLopinavir/Ritonavir22suppressed
Efavirenz-Emtric-Tenofov DisopEfavirenz/Emtricit/Tenofovr Df20suppressed
EstradiolEstradiol19suppressed
Oxycodone HclOxycodone Hcl19suppressed
Potassium ChloridePotassium Chloride19suppressed
TestosteroneTestosterone19suppressed
Doxazosin MesylateDoxazosin Mesylate18suppressed
RamiprilRamipril18suppressed
ClopidogrelClopidogrel Bisulfate17suppressed
LevetiracetamLevetiracetam17suppressed
Montelukast SodiumMontelukast Sodium16suppressed
OdefseyEmtricitab/Rilpiviri/Tenof Ala16suppressed
Olmesartan MedoxomilOlmesartan Medoxomil16suppressed
Tramadol HclTramadol Hcl16suppressed
Atazanavir SulfateAtazanavir Sulfate15suppressed
FurosemideFurosemide15suppressed
Bupropion Hcl SrBupropion Hcl14suppressed
CelecoxibCelecoxib14suppressed
Fluoxetine HclFluoxetine Hcl14suppressed
Metoprolol TartrateMetoprolol Tartrate14suppressed
EliquisApixaban13suppressed
CarvedilolCarvedilol12suppressed
FamciclovirFamciclovir12suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog12suppressed
NevirapineNevirapine12suppressed
PrezistaDarunavir12suppressed
StribildElviteg/Cob/Emtri/Tenofo Disop12suppressed
TrulicityDulaglutide12suppressed
Adefovir DipivoxilAdefovir Dipivoxil11suppressed
Buspirone HclBuspirone Hcl11suppressed
Ciprofloxacin HclCiprofloxacin Hcl1111
Fluticasone PropionateFluticasone Propionate11suppressed
KetoconazoleKetoconazole11suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11suppressed
NaproxenNaproxen11suppressed
Ropinirole HclRopinirole Hcl11suppressed
ValacyclovirValacyclovir Hcl11suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error